Gestational diabetes risk in a multi-ethnic population

Area of Science:

• Reproductive health
• Endocrinology
• Public health

Background:

• Type-2 diabetes (T2DM) prevalence varies significantly across ethnic groups.
• Gestational diabetes mellitus (GDM) is a critical pregnancy complication with potential long-term health implications for both mother and child.
• Understanding ethnic disparities in GDM risk is crucial for targeted public health interventions.

Purpose of the Study:

• To compare the risk of gestational diabetes mellitus (GDM) between two ethnic minority groups (Ethiopian and Arab) and the majority Jewish population in Israel.
• To investigate the association of ethnic background with GDM risk, considering high type-2 diabetes (T2DM) prevalence in minority groups.

Main Methods:

• A historical cohort study utilizing clinical data from 2007-2011.
• Inclusion of 20-45-year-old women: 2938 Ethiopian, 5849 Arab, and 5156 non-Ethiopian Jewish women.
• GDM diagnosis via a two-step strategy; risk analysis using multivariable models adjusted for age, parity, and metabolic syndrome components.

Main Results:

• Ethiopian women had the lowest mean BMI and obesity rates, while Arab women had the highest.
• Pre-gestational diabetes was more prevalent in Ethiopian (2.7%) and Arab (4.1%) women than in non-Ethiopian Jewish women (1.6%).
• GDM occurred more frequently in Ethiopian women (4.3%) but not significantly differently between Arab (2.9%) and non-Ethiopian Jewish (2.2%) women. Ethiopian ancestry was an independent risk factor for GDM (OR, 2.55).

Conclusions:

• Both Ethiopian and Arab minority ethnicities exhibit a higher risk for T2DM compared to other Israeli women.
• Only Ethiopian origin was identified as an independent risk factor for GDM.
• Arab ethnicity was not found to be a significant independent risk factor for GDM in this cohort.